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    Section 21 abolished 1 May 2026. Check what this means for you. Read the guide →

    Tax Code Checker

    Written by Scott Jones, founder of PropertyKiln.

    Enter a tax code and get a plain-English explanation — with red flags for emergency, BR, 0T and K codes.

    This calculator provides estimates based on current UK tax rates and regulations. It is not financial advice. Results depend on your individual circumstances. Consult a qualified accountant for advice specific to your situation.

    Enter your tax code

    Enter your tax code from your payslip or P60. We'll explain every part in plain English and flag anything that looks wrong.

    Find this on your payslip, P45, P60, or HMRC tax code letter